[PATCH] dt-bindings: samsung: exynos-usi: Restrict possible samsung,mode values

[Tudor Ambarus]

On 1/3/25 8:25 AM, Krzysztof Kozlowski wrote:
> "samsung,mode" property defines the desired mode of the serial engine
> (e.g. I2C or SPI) and only few values are allowed/used by Linux driver.
> 
> Cc: Ivaylo Ivanov <ivo.ivanov.ivanov1 at gmail.com>
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski at linaro.org>

Reviewed-by: Tudor Ambarus <tudor.ambarus at linaro.org>

> ---
>  Documentation/devicetree/bindings/soc/samsung/exynos-usi.yaml | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/Documentation/devicetree/bindings/soc/samsung/exynos-usi.yaml b/Documentation/devicetree/bindings/soc/samsung/exynos-usi.yaml
> index f80fcbc3128b..5b046932fbc3 100644
> --- a/Documentation/devicetree/bindings/soc/samsung/exynos-usi.yaml
> +++ b/Documentation/devicetree/bindings/soc/samsung/exynos-usi.yaml
> @@ -64,6 +64,7 @@ properties:
>  
>    samsung,mode:
>      $ref: /schemas/types.yaml#/definitions/uint32
> +    enum: [0, 1, 2, 3]
>      description:
>        Selects USI function (which serial protocol to use). Refer to
>        <include/dt-bindings/soc/samsung,exynos-usi.h> for valid USI mode values.